Radiation damage study by advanced dual-ion irradiation methods

For the systematic materials research for advanced energy systems, integrated research facilities are essential. As the part of the SPIRE Center, IAE, Kyoto University, Dual-ion irradiation experimental facility for energy research, DuET, has been established and operated. Its outstanding advantages are its wide flexibilities and excellent controllabilities in radiation damage studies. The design concept and the current features of the DuET facility are introduced followed to the brief introduction of the SPIRE center. Its contribution to the radiation damage studies is presented connecting with the DuET characteristics. As the typical outputs from the DuET, radiation damage effects on SiC/SiC composites, reduced activation ferritic steels, are provided. As the powerful tool to simulate neutron damage as functions of neutron energy, neutron flux, neutron fluence, irradiation environments and their combinations, application methodologies of DuET are presented and the clear insights of the radiation damage processes only obtainable from this facility are indicated.